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Eur Eat Disord Rev. 2016 Jan;24(1):83-8. doi: 10.1002/erv.2413. Epub 2015 Oct 20.

Repetitive Transcranial Magnetic Stimulation Changes Cerebral Oxygenation on the Left Dorsolateral Prefrontal Cortex in Bulimia Nervosa: A Near-Infrared Spectroscopy Pilot Study.

Author information

1
Department of Cognitive Behavioral Physiology, Graduate School of Medicine, Chiba University, Chiba, Japan.
2
Research Center for Child Mental Development, Chiba University, Chiba, Japan.
3
Department of Psychiatry, Graduate School of Medicine, Chiba University, Chiba, Japan.
4
Division of Medical Treatment and Rehabilitation, Center for Forensic Mental Health, Chiba University, Chiba, Japan.

Abstract

Previous studies showed that food craving in eating disorders can be weakened with high-frequency repetitive transcranial magnetic stimulation (rTMS) on the left dorsolateral prefrontal cortex (DLPFC). The aims of this study were to assess cerebral oxygenation change induced with rTMS and to assess the short-term impact of rTMS on food craving and other bulimic symptoms in patients with bulimia nervosa (BN). Eight women diagnosed with BN according to Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, Text Revision criteria participated in this study. We measured haemoglobin concentration changes in the DLPFC with near-infrared spectroscopy during cognitive tasks measuring self-regulatory control in response to food photo stimuli, both at baseline and after a single session of rTMS. Subjective ratings for food cravings demonstrated significant reduction. A significant decrease in cerebral oxygenation of the left DLPFC was also observed after a single session of rTMS. Measurement with NIRS after rTMS intervention may be applicable for discussing the mechanisms underlying rTMS modulation in patients with BN.

KEYWORDS:

bulimia nervosa; craving; dorsolateral prefrontal cortex; near-infrared spectroscopy; repetitive transcranial magnetic stimulation

PMID:
26481583
DOI:
10.1002/erv.2413
[Indexed for MEDLINE]

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